Dental-plaque-tracing means and method for preparing the same

ABSTRACT

AN EXPENDIBLE APPLICATOR FOR USE IN TRACTING DENTAL PLAQUE CONTAINS A PREDETERMINED AMOUNT OF WATER-SOLUBLE DYE. A METHOD FOR PREPARING THE APPLICATOR AND THE SOLUTION WITH WHICH IT IS IMPREGNATED, IS DISCOLOSED.

June 8, 1971 V a; ALLISON 'METHOD AND APPARATUS FOR MOLDING PLASTICARTICLES Filed Oct. 5, 1968 3 Sheets-Sheet 3 54- INVEN'R )R.

Buxuue (WA mson 0m ,5 m. Q24

mam

